Hemostatic device and hemostatic method

ABSTRACT

A hemostatic device can perform hemostasis by compressing a puncture site on a hand of a patient, and can prevent a movable range of fingers from being narrowed or can prevent misalignment at a wearing position, when the hemostatic device is worn on the hand. The hemostatic device has a covering portion to cover a site where bleeding is to be stopped on a hand of a patient, and a pressing portion that compresses the site where bleeding is to be stopped, in a state where the covering portion covers the site where bleeding is to be stopped. The covering portion includes a securing portion that surrounds at least a portion of the hand while covering the pressing portion, and a restriction portion that restricts a movement of the securing portion in an axial direction. The restriction portion is disposed between adjacent fingers and of the hand.

CROSS-REFERENCES TO RELATED APPLICATIONS

This application is a continuation of International Application No.PCT/JP2018/012436 filed on Mar. 27, 2018, which claims priority toJapanese Application No. 2017-066143 filed on Mar. 29, 2017, the entirecontent of both of which is incorporated herein by reference.

TECHNICAL FIELD

The present invention generally relates to a hemostatic device and ahemostatic method which are used for performing hemostasis bycompressing a puncture site of a hand of a patient.

BACKGROUND DISCUSSION

A medical procedure is known in which a medical elongated body (forexample, a sheath tube of an introducer) is introduced into a bloodvessel via a puncture site formed in the blood vessel of an arm of apatient so as to perform treatment or therapy on a lesion area. In acase where this medical procedure is performed, an operator performshemostasis on the puncture site when the operator removes the medicalelongated body from the puncture site.

As a hemostatic device used for hemostasis of the puncture site, ahemostatic device is known which includes a band for being wrappedaround a limb of an arm, and securing means for securing the band in astate of being wrapped around the limb, and an inflatable portion forbeing inflated by injecting a fluid into the inflatable portion so as tocompress the puncture site. An example of this hemostatic device isdisclosed in Japanese Application Publication No 2008-119517.

A radial artery or an ulnar artery extending along the arm of a humanbody is connected to a palmar artery which bypasses a hand side.Therefore, for example, the operator forms the puncture site in thepalmar artery, thereby enabling the operator to insert the medicalelongated body into the radial artery extending along the arm side. Inaddition, if the puncture site is formed in the hand rather than the armor a wrist, a patient can move his or her arm or wrist while thehemostasis is performed (while a compressing force is applied to thepuncture site). Accordingly, the patient can more freely move his or herbody, and thus, can enjoy improved quality of life (QOL).

Even when the puncture site for introducing the medical elongated bodyis formed in the hand rather than the arm or the wrist as describedabove, when the medical elongated body is removed from the puncturesite, the operator needs to perform the hemostasis.

SUMMARY

However, when the hemostatic device disclosed in Japanese ApplicationPublication No 2008-119517 is used to perform hemostasis on the puncturesite formed on the hand, problems arise in the following points.

The hemostatic device disclosed in Japanese Application Publication No2008-119517 is not designed in view of a structure of the hand(structure of fingers extending and divided from a dorsal side of thehand or a palm). Therefore, if the hemostatic device is worn on thehand, finger motions of the patient are limited, thereby causing apossibility that the QOL may become poor.

In addition, when the hemostatic device disclosed in JapaneseApplication Publication No 2008-119517 is used, the operator can securethe hemostatic device to the hand by wrapping the band along the dorsalside of the hand or the palm. However, in terms of whole hand motionsallowed by the movable fingers when the hemostatic device is worn on thehand, the hemostatic device cannot obtain a sufficient securing forceonly by securing the band. Consequently, there is a possibility thatmisalignment may be likely to occur when the hemostatic device is wornon the hand.

The hemostatic device disclosed here can perform hemostasis bycompressing a puncture site on a hand of a patient, and which canprevent a movable range of fingers from being narrowed or can preventmisalignment when the hemostatic device is worn on the hand, and ahemostatic method which enables the hemostasis to be preferablyperformed on the puncture site on the hand of the patient.

The disclosed hemostatic device includes a covering portion disposed soas to cover a site where bleeding is to be stopped on a hand of apatient, and a pressing portion that compresses the site where bleedingis to be stopped, in a state where the covering portion covers the sitewhere bleeding is to be stopped. The covering portion includes asecuring portion that surrounds at least a portion of the hand whilecovering the pressing portion, and a restriction portion that restrictsa movement of the securing portion in an axial direction. Therestriction portion is disposed between adjacent fingers of the hand.

The disclosed hemostatic method of performing hemostasis on a puncturesite formed on a radial artery side of a palmar artery of a patientincludes providing a hemostatic device including a covering portion forcovering a site where bleeding is to be stopped, which is present on ahand of the patient, and a pressing portion that compresses the sitewhere bleeding is to be stopped, in a state where the covering portioncovers the site where bleeding is to be stopped, disposing the coveringportion around the site where bleeding is to be stopped, disposing thepressing portion in the site where bleeding is to be stopped so that thepressing portion overlaps the puncture site, while a medical elongatedbody indwells the puncture site, securing the covering portion to thehand so that the puncture site is compressed by the pressing portion,and removing the medical elongated body from the puncture site, whilemaintaining a compressing force applied to the puncture site by thepressing portion.

According to another aspect, a hemostatic device comprises a coveringportion disposed so as to cover a site where bleeding is to be stoppedon a hand of a patient, a pressing portion that compresses the sitewhere bleeding is to be stopped when the covering portion covers thesite where bleeding is to be stopped, and a marker portion for aligningthe pressing portion with the site where bleeding is to be stopped sothat the pressing portion overlies the site where bleeding is to bestopped. The covering portion includes a securing portion configured tosurround at least a portion of the patient's hand while covering thepressing portion, and a restriction portion that restricts movement ofthe securing portion in an axial direction, wherein the restrictionportion is positionable between adjacent fingers of the patient's hand.The securing portion includes a band portion wrappable around aperiphery of the patient's hand at the site where bleeding is tostopped, and a holding portion that secures the band portion in a statein which the band portion is wrapped around the periphery of thepatient's hand at the site where bleeding is to stopped. The restrictionportion includes a first end portion secured to the band portion, andsecond free end portion configured to be freely detachably interlockedwith the band portion. The hemostatic device is configured so that in astate in which the second end portion of the restriction portion isinterlocked with the band portion while the band portion is wrappedaround the periphery of the patient's hand at the site where bleeding isto stopped, the pressing portion and the marker portion are disposed ona thumb side of the band portion between the first end portion of therestriction portion and the second free end portion of the restrictionportion.

The above-described hemostatic device can perform the hemostasis bycausing the pressing portion to compress the puncture site, in a statewhere the covering portion covers the site where bleeding is to bestopped on the hand of the patient. Then, in a state where thehemostatic device is worn on the hand of the patient, while thehemostatic device is secured by the securing portion surrounding thehand, the movement of the securing portion in the axial direction(extending direction of fingers) is restricted by the restrictionportion disposed between the adjacent fingers of the hand. In thismanner, according to the hemostatic device, it is possible to prevent amovable range of the fingers from being narrowed, or to preventmisalignment when the hemostatic device is worn on the hand.

According to the above-described hemostatic method, the hemostasis isperformed on the puncture site formed on the radial artery side of thepalmar artery of the patient, thereby preventing motions of the arm orthe wrist of the patient from being limited while the hemostasis isperformed. In this manner, the patient can more freely move his or herbody. Accordingly, QOL is improved.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a plan view when a hemostatic device according to a firstembodiment is viewed from an inner surface side.

FIG. 2 is a plan view illustrating a state where the hemostatic deviceaccording to the first embodiment is worn on a hand of a patient.

FIGS. 3(A) and 3(B) are perspective views illustrating a state where thehemostatic device according to the first embodiment is worn on the handof the patient. FIG. 3(A) is a perspective view when viewed from a sideof a dorsal side of the hand, and FIG. 3(B) is a perspective view whenviewed from a palm side.

FIG. 4 is a cross-sectional view (cross-sectional view of the hand)taken along the section line 4-4 illustrated in FIG. 3(A).

FIG. 5 is an enlarged perspective view of an indwelling portion of thehemostatic device according to the first embodiment.

FIG. 6 is a plan view schematically illustrating a structure of the handof the patient.

FIG. 7 is a perspective view for describing a wearing procedure and ahemostatic method of the hemostatic device according to the firstembodiment.

FIG. 8 is a perspective view for describing a wearing procedure and ahemostatic method of the hemostatic device according to the firstembodiment.

FIG. 9 is a perspective view for describing a wearing procedure and ahemostatic method of the hemostatic device according to the firstembodiment.

FIG. 10 is a perspective view for describing a wearing procedure and ahemostatic method of the hemostatic device according to the firstembodiment.

FIG. 11 is a plan view illustrating a state where a hemostatic deviceaccording to Modification Example 1 of the first embodiment is worn onthe hand of the patient.

FIGS. 12(A) and 12(B) are perspective views illustrating a state wherethe hemostatic device according to Modification Example 1 of the firstembodiment is worn on the hand of the patient. FIG. 12(A) is aperspective view when viewed from a side of the dorsal side of the hand,and FIG. 12(B) is a perspective view when viewed from the palm side.

FIG. 13 is a plan view illustrating a state where a hemostatic deviceaccording to Modification Example 2 of the first embodiment is worn onthe hand of the patient.

FIGS. 14(A) and 14(B) are perspective views illustrating a state wherethe hemostatic device according to Modification Example 2 of the firstembodiment is worn on the hand of the patient. FIG. 14(A) is aperspective view when viewed from a side of the dorsal side of the hand,and FIG. 14(B) is a perspective view when viewed from the palm side.

FIG. 15 is a plan view when a hemostatic device according toModification Example 3 of the first embodiment is viewed from the innersurface side.

FIG. 16 is a plan view illustrating a state where the hemostatic deviceaccording to Modification Example 3 of the first embodiment is worn onthe hand of the patient.

FIGS. 17(A) and 17(B) are perspective views illustrating a state wherethe hemostatic device according to Modification Example 3 of the firstembodiment is worn on the hand of the patient. FIG. 17(A) is aperspective view when viewed from a side of the dorsal side of the hand,and FIG. 17(B) is a perspective view when viewed from the palm side.

FIG. 18 is a plan view illustrating a state where a hemostatic deviceaccording to a second embodiment of the present invention is worn on thehand of the patient.

FIG. 19 is an enlarged view of a portion of a cross section taken alongthe arrow line 19A-19A illustrated in FIG. 18.

FIG. 20 is a plan view illustrating a state where a hemostatic deviceaccording to a modification example of the second embodiment is worn onthe hand of the patient.

DETAILED DESCRIPTION

Set forth below with reference to the accompanying drawings is adetailed description of embodiments of a hemostatic device and ahemostatic method representing examples of the inventive hemostaticdevice and a hemostatic method disclosed here. The dimensions or scaleson the drawings may be exaggerated or different from actuality/realityfor convenience of description and illustration. The followingdescription does not limit the technical scope or the meaning of termsdescribed in the appended claims.

First Embodiment

A hemostatic device 100 according to a first embodiment will bedescribed with reference to FIGS. 1 to 10. FIGS. 1 to 5 are views fordescribing a configuration of the hemostatic device 100. FIG. 6 is aview for describing each blood vessel extending along a hand H of apatient. FIGS. 7 to 10 are views for describing a wearing procedure ofthe hemostatic device 100 and a procedure in a hemostatic method ofusing the hemostatic device 100.

The hemostatic device 100 according to the present embodiment is used asfollows. As illustrated in FIGS. 7 to 10, the hemostatic device 100 isused to perform hemostasis on a puncture site t2 after removing a sheathtube 210 (corresponding to a “medical elongated body”) of an introducer200 indwelling the puncture site t2 formed on a radial artery side Pdrof a palmar artery Pa (deep palmar artery Pd) of the hand H of thepatient.

Prior to the description of the hemostatic device 100, the hand H of thepatient who is a wearing target of the hemostatic device 100 and bloodvessels extending along or running on the hand H will be described withreference to FIG. 6. FIG. 6 schematically illustrates the hand (righthand) H of the patient, in plan view, when the hand H of the patient isviewed from a side of a the dorsal side Hb of the hand.

A radial artery Ra and an ulnar artery Ua which are divided or splitfrom a brachial artery in the vicinity of an elbow run on or extendalong an arm A of the patient. The radial artery Ra and the ulnar arteryUa are connected to each other in an arch shape (bow shape) on the handH, thereby forming the palmar artery (palmar artery arch) Pa. Inaddition, the palmar artery Pa includes a deep palmar artery (deeppalmar artery arch) Pd formed from a deep palmar branch where the radialartery Ra and the ulnar artery Ua are divided on the side of the dorsalside Hb of the hand, and a superficial palmar artery (superficial palmarartery arch) Pf formed from a superficial palmar branch where the radialartery Ra and the ulnar artery Ua are divided on the palm Hp side.

According to the present embodiment, when a virtual line C which dividesthe palmar artery Pa at a substantially center position in a widthdirection (rightward-leftward direction in FIG. 6) of the hand H is setas a boundary, a portion (region) extending to the radial artery Ra sidein the deep palmar artery Pd included in the palmar artery Pa is definedas a radial artery side Pdr (hereinafter, also referred to as the“radial artery side Pdr of the palmar artery Pa”) of the deep palmarartery Pd. A portion (region) extending to the ulnar artery Ua side inthe deep palmar artery Pd included in the palmar artery Pa is defined asan ulnar artery side Pdu of the deep palmar artery Pd.

In addition, when the virtual line C illustrated in FIG. 6 is set as theboundary, a portion (region) extending to the radial artery Ra side inthe superficial palmar artery Pf included in the palmar artery Pa isdefined as a radial artery side Pfr of the superficial palmar artery Pf.A portion (region) extending to the ulnar artery Ua side in thesuperficial palmar artery Pf included in the palmar artery Pa is definedas an ulnar artery side Pfu of the superficial palmar artery Pf.

An inter-finger portion (inter-finger web) Fb is present betweenrespectively adjacent fingers F1 to F5 (a thumb F1, a forefinger F2, amiddle finger F3, a ring finger F4, and a little finger F5). A fingertipdirection of the respective fingers F1 to F5 is indicated by an arrowA1, and a direction from the wrist W and the arm A toward an elbow sideis indicated by an arrow A2. In the description herein, the directionindicated by the arrows A1-A2 is set as an “axial direction”.

According to the present embodiment, the hand H is defined as a portionincluding the dorsal side Hb of the hand and the palm Hp which arelocated on the fingertip side from the wrist (joint connecting the palmand the arm to each other) W. In FIG. 6, a boundary portion between thewrist W and the hand H is illustrated using a virtual line B.

As illustrated in FIG. 4, according to the present embodiment, the “sitewhere bleeding is to be stopped t1” means a perforation formed in a skinsurface layer of the patient by a medical instrument such as a punctureneedle and a peripheral portion of the puncture needle. The “puncturesite t2” means a subcutaneous portion (including the blood vessel) of aliving body in which the perforation is formed by the medical instrumentsuch as the puncture needle.

In addition, according to the present embodiment, the puncture site t2is formed on the radial artery side Pdr of the palmar artery Pa (referto FIGS. 4 and 6). More specifically, as illustrated in FIG. 6, forexample, in a state where the hand H of the patient is open, thepuncture site t2 is formed between a center line c1 of the thumb F1 onthe side of the dorsal side Hb of the hand and a center line c2 of theforefinger F2 (a position where the center line c1 and the center linec2 intersect each other or a peripheral portion thereof).

Next, the hemostatic device 100 will be described.

As illustrated in FIGS. 1 to 3, the hemostatic device 100 includes acovering portion 110 disposed so as to cover the site where bleeding isto be stopped t1 on the hand H of the patient, and a pressing portion160 that compresses or applies a compressive force to the site wherebleeding is to be stopped t1 in a state where the covering portion 110covers the site where bleeding is to be stopped t1.

As illustrated in FIGS. 1 and 2, the covering portion 110 has a securingportion 120 which surrounds at least a portion of the hand H whilecovering the pressing portion 160, and a restriction portion 150 whichrestricts movement of the securing portion 120 in the axial direction.

As illustrated in FIGS. 1 and 3, the securing portion 120 includes aband portion (band) 130 wrapped around the site where bleeding is to bestopped t1 on the hand H, and a holding portion 140 which secures theband portion 130 in a state where the band portion 130 is wrapped arounda periphery of the hand H.

As illustrated in FIG. 1, the band portion 130 is configured to includea flexible band-like or band-shaped member. In the description herein,when the band portion 130 is wrapped around the hand H, a surface(wearing surface) on a side facing a body surface of the hand H will bereferred to as an “inner surface”, and a surface on a side opposite theinner surface will be referred to as an “outer surface”. FIG. 1illustrates a plan view of the hemostatic device 100 when viewed fromthe inner surface side of the band portion 130.

As illustrated in FIGS. 3 and 4, the band portion 130 is wrappedsubstantially once round around an outer periphery of the hand H.

In the band or band portion 130, a male side (or a female side) 140 a ofa surface fastener generally called a Magic Tape (registered trademark)is disposed on the inner surface side of a portion in the vicinity ofthe right end in FIG. 1. In addition, in the band portion 130, a femaleside (or a male side) 140 b of the surface fastener is disposed on theouter surface side of a portion in the vicinity of the left end in FIG.1.

The male side 140 a of the surface fastener of the band portion 130 andthe female side 140 b of the surface fastener of the band portion 130configure or constitute the holding portion 140. As illustrated in FIGS.2 and 4, the operator wraps the band portion 130 around the hand H, andjoins the male side 140 a of the surface fastener and the female side140 b of the surface fastener to each other. In this manner, theoperator can secure the band portion 130 to the hand H of the patient.

The holding portion 140 is not particularly limited as long as theholding portion 140 has a configuration capable of securing the bandportion 130 in a state where the band portion 130 is wrapped around thehand H. For example, the configuration may be a snap, a button, a clip,or a frame member passing through the end portion of the band portion130, for example.

As shown in FIG. 1, the covering portion 110 is comprised of a firstband part (to the right of the pressing portion 160 in FIG. 1) thatextends away from the pressing portion 160 in one direction and that hasone end fixed relative to the pressing portion 160 and an opposite freeend at which the fastener 140 a is located, and a second band part (tothe left of the pressing portion 160 in FIG. 1) that extends away fromthe pressing portion 160 in another direction and that has one end fixedrelative to the pressing portion 160 and an opposite free end at whichis located a fastener 140 b. The covering portion 110 also includes athird band part 150 that includes one end 153 fixed relative to thepressing portion 160 and an opposite free end 154 at which is located afastener 154 a.

A material forming the band portion 130 is not particularly limited, aslong as the material is flexible. For example, this material includespolyolefin such as polyvinyl chloride, polyethylene, polypropylene,polybutadiene, and ethylene-vinyl acetate copolymer (EVA), polyestersuch as polyethylene terephthalate (PET) and polybutylene terephthalate(PBT), various thermoplastic elastomers such as polyvinylidene chloride,silicone, polyurethane, polyamide elastomer, polyurethane elastomer, andpolyester elastomer, or any optional combination thereof (blend resin,polymer alloy, and laminate).

In addition, it is preferable that a portion of the band portion 130overlapping at least the pressing portion 160 in the band portion 130 issubstantially transparent. However, without being limited totransparency, the above-described portion of the band portion 130 may betranslucent or colored transparent. Since the band portion 130 is formedin this way, when the hemostatic device 100 is worn on the hand H of thepatient (refer to FIG. 8), the operator can visually confirm the sitewhere bleeding is to be stopped t1 from the outer surface side of theband portion 130. Therefore, the operator can relatively easily align amarker portion or marker 136 (to be described later) with the site wherebleeding is to be stopped t1.

As illustrated in FIGS. 1 and 5, the covering portion 110 has anindwelling portion 137 enabling the sheath tube 210 of the introducer200 to indwell the site where bleeding is to be stopped t1.

As illustrated in FIG. 1, the indwelling portion 137 is formed on aninner surface of the band portion 130. As illustrated in FIG. 5, theindwelling portion 137 is formed from a groove in which the sheath tube210 of the introducer 200 can be disposed. The groove configuring theindwelling portion 137 has a curved shape which is concave in athickness direction of the band portion 130 from the inner surface sideof the band portion 130. As illustrated in FIG. 1, in the indwellingportion 137, one end side is formed so as to face the outer surface ofthe band portion 130, and the other end side extends to the vicinity ofthe pressing portion 160.

The specific shape or structure of the indwelling portion 137 is notlimited to the grooves as illustrated. For example, the indwellingportion 137 may be a hole portion (opening portion) formed in thevicinity of the pressing portion 160 of the band portion 130.

As illustrated in FIGS. 2 and 3, in a state where the band portion 130is wrapped around the hand H, the restriction portion 150 is secured tothe band portion 130 after passing through an inter-finger portion Fbbetween the thumb F1 and the forefinger F2.

The restriction portion 150 is configured to include a flexibleband-like member. As a material of the restriction portion 150, forexample, it is possible to use a material the same as that of the bandportion 130. Similar to the band portion 130, the restriction portion150 may be formed to be transparent (including translucent and coloredtransparent), or may be a predetermined color so that the restrictionportion 150 is not transparent.

As illustrated in FIGS. 1 and 3, the restriction portion 150 has a firstend portion 153 secured to the band portion 130 and a second end portion154 opposing the first end portion 153 at the opposite end of therestriction portion 150 and capable of freely detachably interlockingwith the band portion 130.

As illustrated in FIG. 1, in a state where the second end portion 154 isseparated from the band portion 130, the restriction portion 150 extendswhile being inclined at a predetermined angle in an extending direction(rightward-leftward direction in FIG. 1) of the band portion 130. By wayof example, The restriction portion 150 may be formed to have a widthsmaller than a width of the band portion 130. The width of the bandportion 130 is a dimension in a direction orthogonal to the extendingdirection of the band portion 130. The width of the restriction portion150 is a dimension orthogonal to the extending direction of therestriction portion 150. The width of the restriction portion 150 may bethe same as the width of the band portion 130.

By way of example, the restriction portion 150 can be formed so that alength in the extending direction is 10 mm to 300 mm and the width is 3mm to 60 mm. In addition, as another example, the band portion 130 canbe formed so that the length in the extending direction is 30 mm to 500mm and the width is 3 mm to 100 mm. It is preferable that the bandportion 130 has a width wider than the width of the restriction portion150. In this manner, in a state where the hemostatic device 100 is wornon the hand H of the patient, while the pressing portion 160 is morereliably secured to the where bleeding is to be stopped t1 on the hand Hof the patient by the band portion 130, the movement in the axialdirection (extending direction of the fingers) can be restricted by therestriction portion 150 disposed between the adjacent fingers of thehand.

The second end portion 154 of the restriction portion 150 has a maleside (or a female side) 154 a of the surface fastener. As illustrated inFIG. 2, the operator can interlock the restriction portion 150 with theband portion 130 by joining the male side 154 a of the surface fastenerof the restriction portion 150 and the female side 140 b of the surfacefastener of the band portion 130.

As an example, the restriction portion 150 may be configured to bedisposed between fingers other than the thumb F1 and the forefinger F2.In addition, for example, a plurality of the restriction portions 150can be disposed in one hemostatic device 100. In this case, therestriction portion 150 may be configured to have a plurality ofportions which are divided from the restriction portion 150 and aredisposed between different fingers, and may be configured to have aplurality of portions which are divided from the band portion 130 andare disposed between different fingers. In addition, for example, therestriction portion 150 may be formed integrally with the band portion130 such that the restriction portion 150 cannot be attached to ordetached from the band portion 130. In a case where the restrictionportion 150 has the plurality of portions disposed between therespective fingers, for example, some may be attachable to anddetachable from the band portion 130, and some may not be attachable toand detachable from the band portion 130.

As illustrated in FIGS. 1 and 8, the restriction portion 150 has aliquid absorbing layer 156 having a liquid absorbing property in aportion (inner surface of the restriction portion 150) disposed on asurface layer side of the hand H.

For example, the liquid absorbing layer 156 can be formed of a gelhaving the liquid absorbing property (water absorbing property), and afibrous material or a porous material having the liquid absorbingproperty. The liquid absorbing layer 156 may be formed on at least aportion of the inner surface of the restriction portion 150, and may notbe formed in the entire extending direction of the restriction portion150.

As illustrated in FIG. 4, the pressing portion 160 has an inflatablemember 161 and an inflatable space 163 into which a fluid (for example,air) can be injected.

As illustrated in FIG. 4, the pressing portion 160 is inflated byinjecting the fluid into the pressing portion 160, and the compressingforce is applied to the site where site bleeding is to be stopped t1(puncture site t2) of the hand H of the patient. In addition, asillustrated in FIG. 2, in a state where the second end portion 154 ofthe restriction portion 150 interlocks with the band portion 130, thepressing portion 160 is disposed on a root side (side indicated by anarrow b1 in FIG. 2, which is in a direction from the virtual line Cdividing the palmar artery Pa at a substantially central position in thewidth direction of the hand H toward the center line c2 of theforefinger F2) of the thumb F1 from the second end portion 154 of therestriction portion 150. FIG. 2 also shows that when the second endportion 154 of the restriction portion 150 is interlocked with the bandportion 130, the pressing portion 160 and the marker portion 136 aredisposed on a thumb side of the band portion between the first endportion 153 and the second end portion 154.

The inflatable member 161 may be formed from a flexible sheet-likemember. A peripheral edge of the inflatable member 161 may be welded (oradhered) to the inner surface of the band portion 130. The inflatablemember 161 forms the inflatable space 163 that enables the fluid to beinjected between the inflatable member 161 and the inner surface of theband portion 130.

A material forming the inflatable member 161 is not particularlylimited, and for example, it is possible to use a material the same asthe material of the above-described band portion 130.

It is preferable that the inflatable member 161 is substantiallytransparent. However, without being limited to transparency, theinflatable member 161 may be translucent or colored transparent.

The pressing portion 160 may be configured to include a bag-like memberobtained in such a way that edge portions are adhered or welded byfolding one sheet, or may be configured to include a balloon-like memberwhich does not include the edge portion.

In addition, an outer shape of the pressing portion 160 is notparticularly limited. For example, in a state where the pressing portion160 is not inflated, the pressing portion 160 may be provided with theouter shapes such as circular, elliptical, and polygonal shapes in aplan view.

In addition, as long as the compressing force can be applied to the sitewhere bleeding is to be stopped t1, the pressing portion 160 may beconfigured to include a member which does not have an inflatablefunction allowed by the fluid injection, for example. That is, thepressing portion need not be an inflatable part that applies thecompressive force upon inflation. As an example of this pressing portion160, for example, it is possible to use a mechanical member in which theamount of pushing (i.e., the magnitude of the compressing force) on thehand H is variable using an external operation such as rotation, amember configured to include a plastic resin material or gel for pushingthe hand H so as to provide surface pressure, a member includinghydrophilic gel or a wound material (dressing material) brought intocontact with the site where bleeding is to be stopped t1, a memberincluding gel which gradually reduces the compressing force bydecreasing water content with the lapse of time, an elastic materialsuch as sponge-like substances, aggregates of fibers such as cotton(padding), metal, and a member having a predetermined three-dimensionalshape (spherical, ellipsoidal, or triangular pyramid shape), or a memberobtained by appropriately combining these materials with each other.

As illustrated in FIGS. 1 and 2, the hemostatic device 100 has aninjection portion 170 for inflating and deflating the inflatable member161 of the pressing portion 160.

As illustrated in FIGS. 1 and 4, the injection portion 170 has aflexible tube 171 in which one end portion of the tube is connected tothe pressing portion 160, and a lumen in the tube 171 communicates withthe inflatable space 163 of the pressing portion 160, a bag body 172disposed in a distal portion of the tube 171 so as to communicate withthe lumen of the tube 171, and a tubular connector 173 having anincorporated check valve connected to the bag body 172.

As illustrated in FIG. 4, one end portion side of the tube 171, which isconnected to the pressing portion 160, penetrates the band portion 130.An interlock member 138 configured to interlock with or be connected tothe tube 171 is attached to the band portion 130. The tube 171 maydirectly interlock with the band portion 130 by welding withoutinterposing a member such as the interlock member 138 between the tube171 and the band portion 130.

To inflate (expand) the inflatable member 161 of the pressing portion160, the operator inserts a distal tubular portion of a syringe into theconnector 173 so as to open the check valve. A plunger of the syringe ispressed, and the air contained inside the syringe is injected into theinflatable space 163 via the injection portion 170. If the inflatablemember 161 is inflated by this operation, the bag body 172 communicatingwith the inflatable space 163 via the tube 171 is expanded. The operatorconfirms the expansion of the bag body 172. In this manner, the operatorcan visually and easily confirm that the inflatable member 161 can bepressurized without leakage of the air.

The operator removes the distal tubular portion of the syringe from theconnector 173 after injecting the air into the inflatable member 161. Inaddition, the operator can close the bag body 172 by using the checkvalve incorporated in the connector 173, and can prevent air leakage.

As illustrated in FIGS. 2 and 4, at a location for covering the pressingportion 160, the band portion 130 has the visually identifiable markerportion 136 for aligning the pressing portion 160 so as to overlap thesite where bleeding is to be stopped t1.

As illustrated in FIG. 2, the marker portion 136 is disposed at asubstantially central position in a plane direction of the pressingportion 160. In addition, as illustrated in FIG. 4, the marker portion136 may be disposed on the inner surface of the band portion 130.

As illustrated in FIG. 2, the marker portion 136 may be formed in arectangular shape in a plan view. However, a shape of the marker portion136 is not particularly limited. For example, the shape of the markerportion 136 may be a circular shape, a triangular shape, a quadrangularshape, a star shape, or a pentagon shape.

In addition, a material forming the marker portion 136 is notparticularly limited. For example, the material includes an oilycoloring agent such as ink, or a resin mixed with a dye.

In addition, the color of the marker portion 136 is not particularlylimited as long as the color enables the pressing portion 160 to alignwith the site where bleeding is to be stopped t1. However, it ispreferable to use a green color system. Since the green color system isused, the operator can easily and visually confirm the marker portion136 on the blood or the skin. Accordingly, the pressing portion 160 ismuch likely to align with the site where bleeding is to be stopped t1.

In addition, it is preferable that the marker portion 136 is translucentor colored transparent. In this manner, even in a state where the markerportion 136 overlaps the site where bleeding is to be stopped t1, theoperator can visually confirm the site where bleeding is to be stoppedt1 from the outer surface side of the marker portion 136.

A method of disposing the marker portion 136 in the band portion 130 isnot particularly limited. For example, the method includes a method ofprinting the marker portion 136 on the band portion 130, a method ofwelding the marker portion 136 to the band portion 130, a method ofaffixing the marker portion 136 to the band portion 130 by applying anadhesive to one side surface of the marker portion 136.

The marker portion 136 may be disposed on the outer surface of the bandportion 130. In addition, the marker portion 136 may be disposed in theinflatable member 161 of the pressing portion 160. In this case, it ispreferable that the marker portion 136 is disposed on the inner surfaceside of the inflatable member 161 so that the marker portion 136 is notin direct contact with the site where bleeding is to be stopped t1(refer to FIG. 4).

Next, a hemostatic method according to the present embodiment will bedescribed with reference to FIGS. 7 to 10.

As illustrated in FIG. 7, the operator inserts the sheath tube 210 ofthe introducer 200 into the radial artery side Pdr of the palmar arteryPa. Specifically, the operator uses a puncture needle known in themedical field to puncture a hole in the skin of the dorsal side Hb ofthe hand of the patient toward the radial artery side Pdr of the palmarartery Pa. As described above, in a state where the hand H of thepatient is open, the puncture site t2 is formed between the center linec1 of the thumb F1 and the center line c2 of the forefinger F2 on theside of the dorsal side Hb of the hand side (refer to FIG. 6).

As illustrated in FIG. 7, as the introducer 200, it is possible to usean introducer including the sheath tube 210, a hub portion 220 disposedin a proximal portion of the sheath tube 210, a liquid injecting tube230 for communicating with the lumen of the hub portion 220, and adilator tube which can be inserted into and removed from the sheath tube210.

Next, the operator inserts a guide wire into the radial artery side Pdrof the palmar artery Pa via the lumen of the puncture needle.

Next, the operator removes the puncture needle outward of the livingbody while the guide wire remains indwelled at the radial artery sidePdr of the palmar artery Pa.

Next, the operator inserts the dilator tube inserted into the sheathtube 210 into the radial artery side Pdr of the palmar artery Pa alongthe guide wire from the dorsal side Hb of the hand.

Next, as illustrated in FIG. 7, while the operator causes the sheathtube 210 to indwell the radial artery side Pdr of the palmar artery Pa,the operator removes the guide wire and the dilator tube from the radialartery side Pdr of the palmar artery Pa. Thereafter, the operatorinserts medical devices such as a treatment instrument and a diagnosticinstrument, the guide wire for delivering the medical devices to a bloodvessel where a lesion area is present, into the radial artery side Pdrof the palmar artery Pa via the sheath tube 210.

The operator can insert the medical devices and the guide wire into apredetermined lesion area (for example, a stenosed site of the coronaryartery) via the radial artery side Pdr of the palmar artery Pa, theradial artery Ra, and the brachial artery.

The operator removes the medical devices and the guide wire via thesheath tube 210 after completing treatment for the lesion area. In thiscase, the operator removes the medical devices and the guide wireoutward of the living body through the brachial artery, the radialartery Ra, the radial artery side Pdr of the palmar artery Pa, and thepuncture site t2 in this order.

Next, the operator uses the hemostatic device 100 to perform hemostasis.

As illustrated in FIG. 8, the operator disposes the band portion 130 ofthe covering portion 110 around the periphery of the site where bleedingis to be stopped t1 on the dorsal side Hb of the hand. In this case, theoperator disposes a portion of the sheath tube 210 which is extractedoutward of the living body so as to align with the indwelling portion137 formed in the band portion 130 (refer to FIG. 5).

While the operator causes the sheath tube 210 of the introducer 200 toindwell the puncture site t2, the operator disposes the pressing portion160 so as to overlap or overlie the puncture site t2 (refer to FIG. 4).In this case, while the operator visually confirms the marker portion136 formed in the band portion 130, the operator disposes the markerportion 136 so as to overlap or overlie the site where bleeding is to bestopped t1. In this manner, the operator can easily align the pressingportion 160 with the puncture site t2.

In a working stage where the hemostatic device 100 is mounted on startsto be worn on the hand H, the hemostatic device 100 is in a state inwhich the pressing portion 160 is not inflated.

In a state where the band portion 130 is wrapped around the hand H, theoperator joins the holding portions 140 (the male side 140 a and thefemale side 140 b of the surface fastener) to secure the band portion130 to the hand H.

Next, as illustrated in FIG. 9, the operator disposes the restrictionportion 150 so that at least a portion of the restriction portion 150 iscaught on the inter-finger portion Fb between the thumb F1 and theforefinger F2. In this case, the operator secures the male side 154 a ofthe surface fastener disposed in the second end portion 154 of therestriction portion 150 to the holding portion 140 (female side 140 b ofthe surface fastener).

As illustrated in FIG. 9, the operator causes the patient to wear thehemostatic device 100 on the hand H of the patient so that the injectionportion 170 is directed to the downstream side (palm side) of the bloodflow of the radial artery Ra. In this manner, when the injection portion170 is operated, the operator can prevent an instrument (for example, ablood pressure monitor) located on the upstream side of the blood flowor the operator working on the upstream side of the blood flow and theinjection portion 170 from interfering with each other. In a case of theradial artery Ra, the upstream side of the blood flow means a directioncloser to the heart of the blood vessel, and the downstream side of theblood vessel means a direction away from the heart of the blood vessel.As shown in FIG. 9, as well as FIG. 2, the hemostatic device isconfigured so that when the hemostatic device 100 is worn on thepatient's hand H (i.e., when the band portion is wrapped around theperiphery of the patient's hand H at the site where bleeding is to bestopped while the restriction portion 150 passes between the thumb andthe forefinger with the second end portion 154 of the restrictionportion 150 interlocked with the band portion 130), the pressing portion160 and the marker portion 136 are disposed on the thumb side of theband portion 130 between the first end portion 153 of the restrictionportion and the second free end portion 154 of the restriction portion150.

Next, the operator connects a syringe to the connector 173 of theinjection portion 170, and injects the air into the pressing portion160. The pressing portion 160 is inflated by injecting the air into thepressing portion 160 so as to apply the compressing force to thepuncture site t2 formed on the radial artery side Pdr of the palmarartery Pa (refer to FIG. 4).

As illustrated in FIG. 10, while maintaining the compressing force ofthe pressing portion 160 which is applied to the puncture site t2, theoperator removes the sheath tube 210 of the introducer 200 from thepuncture site t2.

In a state where the hemostatic device 100 is worn on the hand H of thepatient, the puncture site t2 is disposed on the band portion 130 sidefrom the restriction portion 150. In addition, in a state where therestriction portion 150 is disposed in the inter-finger portion Fbbetween the thumb F1 and the forefinger F2, the pressing portion 160 isdisposed on the root side of the thumb from the second end portion 154of the restriction portion 150.

After the pressing portion 160 is inflated so as to start thehemostasis, the operator can appropriately adjust the internal pressureof the pressing portion 160 in accordance with progress of thehemostasis. For example, in a case where the hemostasis is notsufficiently performed on the puncture site t2 after the pressingportion 160 is inflated, the operator can increase the internal pressureof the pressing portion 160 by injecting air again into the pressingportion 160. In addition, for example, in a case where the operatorwants to return the internal pressure of the pressing portion 160 to theinternal pressure of the pressing portion 160 into which the air isinitially injected, the operator may inject the air as much as theamount of the air discharged from the pressing portion 160.

The patient can move the arm A, the wrist W, and the fingertip while thehemostasis is performed using the hemostatic device 100. Therefore, thepatient can more freely move his or her body, compared to a case of thehemostasis in a state where the compressing force is applied to thepuncture site formed on the arm or the wrist. Accordingly, QOL isimproved.

The operator removes the hemostatic device 100 from the hand H after apredetermined time elapses and the hemostasis is completely performed onthe puncture site t2. In this case, for example, after the operatorreleases the restriction portion 150 secured to the band portion 130,the operator releases the band portion 130 interlocked with the holdingportion 140. In this manner, the operator can smoothly detach thehemostatic device 100.

An operation effect of the hemostatic device 100 and the hemostaticmethod according to the present embodiment will be described.

The hemostatic device 100 according to the present embodiment has thecovering portion 110 disposed so as to cover the site where bleeding isto be stopped t1 on the hand H of the patient, and the pressing portion160 that compresses the site where bleeding is to be stopped t1 in astate where the covering portion 110 covers the site where the bleedingis to be stopped t1. In addition, the covering portion 110 includes thesecuring portion 120 which surrounds at least a portion of the hand H ofthe patient while covering the pressing portion 160, and the restrictionportion 150 which restricts the movement of the securing portion 120 inthe axial direction. Then, the restriction portion 150 is disposedbetween the adjacent fingers F1 and F2 of the hand.

In a state where the covering portion 110 covers the site where bleedingis to be stopped t1 on the hand H of the patient, the above-describedhemostatic device 100 can perform the hemostasis by causing the pressingportion 160 to compress the site where bleeding is to be stopped t1.Then, in a state where the hemostatic device 100 is worn on the hand Hof the patient, while the hemostatic device 100 is secured by thesecuring portion 120 which surrounds the hand H, the movement in theaxial direction (the extending direction of the fingers) is restrictedby the restriction portion 150 disposed in the inter-finger portion Fbbetween the adjacent fingers F1 and F2 of the hand H. In this manner,the hemostatic device 100 can prevent a movable range of the fingersfrom being narrowed when the hemostatic device 100 is worn on the handH, or to prevent misalignment in a state where the hemostatic device 100is worn on the hand H.

In addition, the securing portion 120 of the hemostatic device 100includes the band portion 130 wrapped around the site where bleeding isto be stopped t1 on the hand H, and the holding portion 140 whichsecures the band portion 130 in a state where the band portion 130 iswrapped around the periphery of the hand H. Then, in a state where theband portion 130 is wrapped around the periphery of the hand H, therestriction portion 150 is secured to the band portion 130 after passingthrough the inter-finger portion Fb between the thumb F1 and theforefinger F2.

According to the hemostatic device 100 configured as described above,the holding portion 140 stably maintains a state where the band portion130 is wrapped around the periphery of the hand H. In addition, therestriction portion 150 is secured to the band portion 130 after passingthrough the inter-finger portion Fb between the thumb F1 and theforefinger F2. In this manner, the movement of the band portion 130 inthe axial direction is restricted. Furthermore, the inter-finger portionFb between the thumb F1 and the forefinger F2 has an area relativelylarger than that of the inter-finger portion between other fingers.Accordingly, the operator can firmly hold the restriction portion 150 inthe inter-finger portion Fb, and can preferably prevent the hemostaticdevice 100 from being misaligned.

In addition, the restriction portion 150 of the hemostatic device 100has the first end portion 153 secured to the band portion 130, and thesecond end portion 154 facing the first end portion 153 and capable offreely detachably interlocking with the band portion 130. Then, in astate where the second end portion 154 interlocks with the band portion130, the pressing portion 160 is disposed on the root side of the thumbF1 from the second end portion 154 of the restriction portion 150.

According to the hemostatic device 100 configured as described above,the second end portion 154 of the restriction portion 150 can beattached to and detached from the band portion 130. Accordingly, workfor disposing the restriction portion 150 between the adjacent fingersof the patient is facilitated. In addition, the pressing portion 160 isdisposed on the root side of the thumb F1 from the second end portion154 of the restriction portion 150. Accordingly, in a state where thepressing portion 160 compresses the site where bleeding is to be stoppedt1 (the puncture site t2), the pressing portion 160 may be preventedfrom being disposed on the fingertip side of the fingers. In thismanner, the hemostatic device 100 may prevent the hand motion of thepatient from being limited.

In addition, in the location for covering the pressing portion 160, theband portion 130 of the hemostatic device 100 has the marker portion 136for aligning the pressing portion 160 so as to overlap the site wherebleeding is to be stopped t1. According to the hemostatic device 100configured in this way, the operator can rather easily align thepressing portion 160 with the site where bleeding is to be stopped t1.Therefore, a treatment time using the hemostatic device 100 can beshortened.

In addition, the restriction portion 150 of the hemostatic device 100has a liquid absorbing layer 156 provided with a liquid absorbingproperty in a portion disposed on a surface layer side of the hand H ofthe patient. According to the hemostatic device 100 configured in thisway, the liquid absorbing layer 156 absorbs (adsorbs) a body fluid suchas the blood flowing to the restriction portion 150 side while thehemostasis is performed using the hemostatic device 100. Therefore, theoperator can save time and labor in wiping the blood, and can shortenthe treatment time using the hemostatic device 100.

In addition, the covering portion 110 of the hemostatic device 100 hasthe indwelling portion 137 which enables the sheath tube 210 of theintroducer 200 to indwell the site where bleeding is to be stopped t1,between the pressing portion 160 and the restriction portion 150.According to the hemostatic device 100 configured in this way, theoperator can cause the patient to wear the hemostatic device 100 on thehand H in a state where the sheath tube 210 of the introducer 200remains indwelled, so that the wearing operation of the hemostaticdevice 100 can be easily and quickly performed.

The hemostatic method according to the present embodiment is used inperforming the hemostasis on the puncture site t2 formed on the radialartery side Pdr of the palmar artery Pa of the patient. The hemostaticmethod includes providing the hemostatic device 100 including thecovering portion 110 for covering the site where bleeding is to bestopped t1, which is present on the hand H of the patient, and thepressing portion 160 that compresses the site where bleeding is to bestopped t1, in a state where the covering portion 110 covers the sitewhere bleeding is to be stopped t1, disposing the covering portion 110around the site where bleeding is to be stopped t1, disposing thepressing portion 160 in the site where bleeding is to be stopped t1 sothat the pressing portion 160 overlaps the puncture site t2, while thesheath tube 210 of the introducer 200 indwells the puncture site t2formed on the hand H of the patient, securing the covering portion 110to the hand H so that the puncture site t2 is compressed by the pressingportion 160, and removing the sheath tube 210 of the introducer 200 fromthe puncture site t2, while maintaining the compressing force applied tothe puncture site t2 by the pressing portion 160.

According to the above-described hemostatic method, the hemostasis isperformed on the puncture site t2 formed on the radial artery side Pdrof the palmar artery Pa of the patient, thereby preventing the motionsof the arm A, the wrist W, and the fingertips of the patient from beinglimited while the hemostasis is performed. In this manner, the patientcan more freely move his or her body. Accordingly, QOL is improved.

In addition, the covering portion 110 of the hemostatic device 100 usedfor the hemostasis includes the securing portion 120 which surrounds atleast a portion of the hand H of the patient while covering the pressingportion 160, and the restriction portion 150 which restricts themovement of the securing portion 120 in the axial direction. Then, therestriction portion 150 is disposed between the adjacent fingers of thehand H in a state where the covering portion 110 is secured to the handH so that the pressing portion 160 compresses the puncture site t2.

According to the above-described hemostatic method, in a state where thecovering portion 110 covers the site where bleeding is to be stopped t1on the hand H of the patient, the operator can perform the hemostasis bycausing the pressing portion 160 to compress the site where bleeding isto be stopped t1. Then, in a state where the hemostatic device 100 isworn on the hand H of the patient, while the hemostatic device 100 issecured by the securing portion 120 surrounding the hand H, the movementin the axial direction (extending direction of the fingers) isrestricted by the restriction portion 150 disposed between the adjacentfingers of the hand H. In this manner, the operator can prevent amovable range of the fingers of the patient wearing the hemostaticdevice 100, or can prevent misalignment of the hemostatic device 100.

In addition, the securing portion 120 of the hemostatic device 100includes the band portion 130 wrapped around the site where bleeding isto be stopped t1 on the hand, and the holding portion 140 which securesthe band portion 130 in a state where the band portion 130 wrappedaround the periphery of the hand H. Then, in a state where the bandportion 130 is wrapped around the periphery of the hand H, therestriction portion 150 is secured to the band portion 130 after passingthrough the inter-finger portion Fb between the thumb F1 and theforefinger F2.

According to the above-described hemostatic method, the operator cancause by the holding portion 140 to stably maintain a state where theband portion 130 is wrapped around the periphery of the hand H. Inaddition, the operator can prevent the misalignment of the hemostaticdevice 100 by using the restriction portion 150 disposed so as to passthrough the inter-finger portion Fb having a relatively wide areabetween the thumb F1 and the forefinger F2.

In addition, in a state where the hand H of the patient is open, thepuncture site t2 is formed between the center line c1 of the thumb F1and the center line c2 of the forefinger F2 on the side of the dorsalside Hb of the hand. Then, in a state where the hemostatic device 100 isworn on the hand H of the patient, the puncture site t2 is disposed onthe band portion 130 side from the restriction portion 150. According tothis hemostatic method, the operator can cause the pressing portion 160disposed in the band portion 130 to preferably apply the compressingforce to the puncture site t2 formed on the radial artery side Pdr ofthe palmar artery Pa.

In addition, in a state where the restriction portion 150 is disposedbetween the adjacent fingers of the hand H of the patient, the pressingportion 160 is disposed on the root side of the thumb F1 from the secondend portion 154 (end portion of the restriction portion 150 which issecured to the band portion 130) of the restriction portion 150.According to this hemostatic method, the operator can apply thecompressing force to the puncture site t2 on the root side of the thumbF1. Therefore, it is possible to further widen the movable range of thehand H of the patient while the hemostasis is performed.

Next, modification examples according to the above-described firstembodiment will be described. In the modification examples,configurations and materials which are not specifically described ormedical procedures (procedures of the hemostatic method) which are notspecifically described can be regarded as those according to theabove-described embodiment, and so such description will not berepeated. In the description below of modification examples, featuresthat are the same or similar to those described above are identified bythe same reference numerals and a detailed description of such featuresis also not repeated.

Modification Example 1

FIG. 11 is a plan view illustrating a state where a hemostatic device300 according to Modification Example 1 is worn on the hand H of thepatient, and FIG. 12 is a perspective view illustrating a state wherethe hemostatic device 300 according to Modification Example 1 is worn onthe hand H of the patient. Note that, FIGS. 11 and 12 illustrate a statewhere the hemostatic device 300 is worn on the hand H of the patient ina state where the sheath tube 210 of the introducer 200 is indwelled atthe hand H of the patient.

The hemostatic device 300 according to Modification Example 1 isconfigured so that a securing portion 320 and a restriction portion 350which are included in a covering portion 310 have configurationsdifferent from those of the hemostatic device 100 according to theabove-described first embodiment.

As illustrated in FIGS. 11 and 12, the securing portion 320 isconfigured to include a bag portion, surrounding portion or enclosure330 which wraps around or surrounds (encircles) the whole dorsal side Hbof the hand while being in contact with the surface of the dorsal sideHb of the hand and while allowing exposure of part of the fingers. Inaddition, in a state where the bag portion 330 is wrapped around thedorsal side Hb of the hand, the restriction portion 350 is integrallyformed in one piece with the bag portion 330 to pass between theadjacent fingers of the hand H.

The bag portion or enclosure 330 configuring or constituting thesecuring portion 320 has a structure such as a glove which covers thewhole hand H of the patient. In addition, the bag portion 330 is formedin a shape so as to cover a certain range on the fingertip side from theinter-finger portion Fb between the respective fingers F1 to F5 and theroot portions of the respective fingers F1 to F5. In other words, thebag portion 330 or enclosure is configured to extend from theinter-finger portion Fb between the respective fingers F1 to F5, along aportion of each of the fingers F1-F5, toward the free ends of thefingers F1-F5.

As illustrated in FIG. 11, the bag portion 330 has an indwelling portion337 which enables the sheath tube 210 of the introducer 200 to indwellthe site where bleeding is to be stopped t1.

The indwelling portion 337 is configured to include a through opening oran opening portion (hole portion) formed in the bag portion 330. Theindwelling portion 337 exposes a portion of the dorsal side Hb of thehand from the bag portion 330. In a state where the bag portion 330wraps or is wrapped around the dorsal side Hb of the hand, theindwelling portion 337 is disposed between the thumb F1 of the hand andthe forefinger F2 of the hand (position where at least a portion of theindwelling portion 337 is disposed between the extension line of thethumb F1 of the hand and the extension line of the forefinger of thehand).

In addition, in a state where the bag portion 330 wraps or is wrappedaround the dorsal side Hb of the hand, the indwelling portion 337 isdisposed on the thumb F1 side (fingertip side of the thumb F1) from thepressing portion 160. In other words, the through hole defining theindwelling portion 337 is positioned between the pressing portion 160and the base side of the forefinger F2 (the end of the enclosure 330covering a portion of the forefinger F2).

The pressing portion 160 is disposed on the inner surface (surfacefacing a surface layer of the dorsal side Hb of the hand) of the bagportion 330. A structure of the pressing portion 160 can adopt aconfiguration substantially the same as that of the above-describedhemostatic device 100. In addition, for example, the liquid absorbinglayer capable of absorbing the body fluid such as the blood can bedisposed at any desired position on the inner surface of the bag portion330.

For example, the bag portion 330 can be formed of a material the same asthat of the band portion 130 according to the above-describedembodiment. In the bag portion 330, it is preferable that at least aportion which overlaps the pressing portion 160 is transparent,translucent, or colored transparent.

Next, a procedure for using the hemostatic device 300 according toModification Example 1 will be described.

As illustrated in FIGS. 12(A) and 12(B), while the operator causes thesheath tube 210 of the introducer 200 to indwell the radial artery sidePdr of the palmar artery Pa, the operator covers the hand H of thepatient with the bag portion or enclosure 330 of the hemostatic device300. Specifically, the operator covers the dorsal side Hb of the handand the palm Hp side with the bag portion 330 from the fingertip side ofthe hand H. In this case, the operator causes the introducer 200 to passthrough the indwelling portion 337 of the bag portion 330. In thismanner, the hand H can be covered with the bag portion 330 withoutcausing interference between the introducer 200 and the bag portion 330.

After the hemostatic device 300 is worn on the hand H of the patient,the operator connects a syringe (not illustrated) to the connector 173of the injection portion 170, and injects the air into the pressingportion 160. The pressing portion 160 is inflated by the injected air,and the compressing force is applied to the puncture site t2 formed onthe radial artery side Pdr of the palmar artery Pa.

In a state where the hub portion 220 of the introducer 200 is extractedfrom the indwelling portion 337, the operator can maintain the sheathtube 210 in a state of indwelling the puncture site t2.

Next, while maintaining the compressing force of the pressing portion160 which is applied to the puncture site t2, the operator removes thesheath tube 210 of the introducer 200 from the puncture site t2. In thiscase, the operator causes the introducer 200 to pass through theindwelling portion 337 of the bag portion 330. In this manner, theoperator can remove the sheath tube 210 from the puncture site t2 sothat the introducer 200 does not interfere with the bag portion 330.

An operation effect of the hemostatic device 300 according to thismodification example will be described.

The securing portion 320 included in the hemostatic device 300 accordingto this modification example is configured to include the bag portion330 which surrounds the whole dorsal side Hb of the hand while being incontact with the surface of the dorsal side Hb of the hand of thepatient. Then, the restriction portion 350 is formed integrally with thebag portion 330 so as to pass between the adjacent fingers of the handH, in a state where the bag portion 330 wraps the dorsal side Hb of thehand.

The hemostatic device 300 configured as described above has the bagportion 330 disposed so as to come into contact with the dorsal side Hbof the hand of the patient. Accordingly, it is possible to improve asecuring force of the hemostatic device 300 which is applied to the handH of the patient. In addition, in the hemostatic device 300, therestriction portion 350 is formed integrally with the bag portion 330.Therefore, the operator can dispose the restriction portion 350 betweenthe adjacent fingers by causing the bag portion 330 to be worn on thedorsal side Hb of the hand of the patient. In this manner, the operatorenables the hemostatic device 300 to be easily worn on the hand H of thepatient.

In addition, the bag portion 330 of the hemostatic device 300 has theindwelling portion 337 which enables the sheath tube 210 of theintroducer 200 to indwell the site where bleeding is to be stopped t1.In a state where the bag portion 330 wraps or is wrapped around thedorsal side Hb of the hand of the patient, the indwelling portion orthrough hole 337 is disposed between the thumb F1 of the hand and theforefinger F2 of the hand. Therefore, in a state where the bag portion330 is worn on the dorsal side Hb of the hand, the operator can stablymaintain a state where the sheath tube 210 of the introducer 200 isindwelled at the puncture site t2.

In addition, in a state where the bag portion 330 wraps or is wrappedaround the dorsal side Hb of the hand, the indwelling portion 337 orthrough hole of the hemostatic device 300 is disposed on the thumb F1side from the pressing portion 160. Therefore, the operator can disposethe hub portion 220 of the introducer 200 on the thumb F1 side, and candispose the introducer 200 toward the fingertip side of the fingers.This enables the operator to relatively easily operate the introducer200 even in a state where the hemostatic device 300 is worn on the handH of the patient.

The number of the restriction portions 350 disposed in the hemostaticdevice 300 according to Modification Example 1 and the number of thefingers which can be simultaneously covered with the bag portion orenclosure 330 are not particularly limited.

Modification Example 2

FIG. 13 is a plan view illustrating a state where a hemostatic device400 according to Modification Example 2 is worn on the hand H of thepatient. FIG. 14 is a perspective view illustrating a state where thehemostatic device 400 according to Modification Example 2 is worn on thehand H of the patient. FIGS. 13 and 14 illustrate the hemostatic device400 worn on the hand H of the patient in a state where the sheath tube210 of the introducer 200 indwells or is indwelled in the hand H of thepatient.

In the hemostatic device 400 according to Modification Example 2, aconfiguration of a securing portion 420 (bag portion 430) configured towrap the dorsal side Hb of the hand of the patient differs from that ofthe hemostatic device 300 according to Modification Example 1.

As illustrated in FIGS. 13 and 14, the bag portion or enclosure 430 isconfigured to be wrapped around, surround or enclose (surround) the handH of the patient. The bag portion 430 has a holding portion 440 formaintaining a state where the bag portion 430 is wrapped around the handH.

The holding portion 440 has a male side 440 a (or a female side 440 b)of the surface fastener formed in the bag portion 430 and a female side440 b (or a male side) of the surface fastener.

The operator joins the male side 440 a of the surface fastener and thefemale side 440 b of the surface fastener to each other. In this manner,the operator can maintain a state where the bag portion 430 is wrappedaround the hand H of the patient. In addition, the operator releases themale side 440 a of the surface fastener which is joined to the femaleside 440 b of the surface fastener. In this manner, the operator canrelease the state where the bag portion 430 is wrapped around the hand Hof the patient (e.g., to remove the hemostatic device 400 from thepatient's hand).

The holding portion 440 may be a snap, a button, a clip, or a framemember passing through the end portion of the bag portion 330, forexample.

The bag portion 430 is formed so as to partially cover the root side ofthe thumb F1 in the hand H of the patient. A restriction portion 450 isformed integrally with the bag portion 430, and is disposed in theinter-finger portion Fb between the thumb F1 and the forefinger F2, in astate where the bag portion 430 is wrapped around the dorsal side Hb ofthe hand of the patient.

The bag portion 330 of the hemostatic device 300 according toModification Example 1 described above is formed so as to partiallycover the root side of the respective fingers F1 to F5. However, thehemostatic device 400 according to Modification Example 2 is formed sothat the fingers other than the thumb F1 are exposed. That is, the bagportion or enclosure 330 is configured to entirely encircle the base ofthe thumb F1, by virtue of the restriction portion 450, but the otherfingers F2-F5 are not similarly entirely encircled. In ModificationExample 1 shown in FIGS. 11, 12A and 12B, a part of the bag portion orenclosure 330 entirely encircles the base of each of the fingers F1-F5.

Similarly to the hemostatic device 300 according to Modification Example1 described above, the hemostatic device 400 according to ModificationExample 2 has the improved securing force applied to the hand H of thepatient. In addition, in the hemostatic device 400, the restrictionportion 450 is formed integrally with the bag portion 430. Therefore,the operator causes the bag portion 430 to be worn on the dorsal side Hbof the hand of the patient. In this manner, the operator can dispose therestriction portion 450 between the adjacent fingers. In this manner,the operator enables the hemostatic device 400 to be easily worn on thehand H of the patient.

Furthermore, the operator uses the holding portion 440 formed in the bagportion 430. In this manner, the operator enables the bag portion 430 tobe easily worn on the hand H of the patient, and enables the bag portion430 to be easily detached from the hand H of the patient.

The holding portion 440 described in the hemostatic device 400 accordingto Modification Example 2 can also be disposed in the bag portion 330 ofthe hemostatic device 300 according to Modification Example 1 describedabove.

Modification Example 3

FIG. 15 is a plan view when a hemostatic device 500 according toModification Example 3 is viewed from the inner surface side. FIG. 16 isa plan view illustrating a state where the hemostatic device 500according to Modification Example 3 is worn on the hand H of thepatient, and FIG. 17 is a perspective view illustrating the state wherethe hemostatic device 500 according to Modification Example 3 is worn onthe hand H of the patient.

In the hemostatic device 500 according to Modification Example 3, theconfiguration of the securing portion 520 and the restriction portion530 which are included in or form a part of the covering portion 510differ from that of the hemostatic device 100 according to theabove-described first embodiment.

As illustrated in FIGS. 15 and 16, the covering portion 510 of thehemostatic device 500 includes the securing portion 520 which covers thepressing portion 160, and the restriction portion 530 which surroundsthe arm A (or the wrist W) of the patient while restricting the movementof the securing portion 520.

As illustrated in FIGS. 16 and 17, the restriction portion 530 includesa band portion 540 wrapped around the arm A of the patient, and aholding portion 550 which secures the band portion 540 in a state wherethe band portion 540 is wrapped around the arm A of the patient.

The band portion 540 can be formed to be substantially the same as theband portion 130 of the above-described hemostatic device 100. However,for example, the band portion 540 can be formed to have the length of 60mm to 600 mm, and can be formed to have the width of 3 mm to 500 mm sothat the band portion 540 can be wrapped around the arm A.

As illustrated in FIG. 15, the holding portion 550 has a male side (or afemale side) 550 a of the surface fastener disposed on the inner surfaceside of the band portion 540, and a female side (or a male side) 550 bof the surface fastener disposed on the outer surface side of the bandportion 540.

As illustrated in FIGS. 16 and 17, in a state where the band portion 540is wrapped around the periphery of the arm A, the securing portion 520is secured to the band portion 540 after passing through theinter-finger portion Fb between the thumb F1 and the forefinger F2.

As illustrated in FIGS. 16 and 17, the securing portion 520 has a firstend portion 523 secured to the band portion 540, and a second endportion 524 facing the first end portion 523 and capable of freelydetachably interlocking with the band portion 540.

As illustrated in FIG. 15, in a state where the second end portion 524is separated from the band portion 540, the securing portion 520 extendswhile being inclined at a predetermined angle in the extending direction(rightward-leftward direction in FIG. 15) of the band portion 540. Thatis, as illustrated, the securing portion 520 extends at an oblique anglerelative to the direction of extent of the band portion 540.

By way of example, the securing portion 520 can have a length in theextending direction of 50 mm to 5000 mm, and can be formed to have thewidth of 3 mm to 60 mm. The width of the securing portion 520 is adimension in a direction orthogonal to the extending direction(longitudinal direction) of the securing portion 520.

The male side (or the female side) 524 a of the surface fastener isdisposed in the second end portion 524 of the securing portion 520. Asillustrated in FIG. 16, the operator joins the male side 524 a of thesurface fastener of the securing portion 520 and the female side 550 bof the surface fastener of the band portion 540 to each other. In thismanner, the operator can interlock the securing portion 520 with theband portion 540.

As illustrated in FIG. 15, the securing portion 520 has a liquidabsorbing layer 527 having the liquid absorbing property in a portion(inner surface of the securing portion 520) disposed on the surfacelayer side of the hand H. The liquid absorbing layer 527 can besubstantially the same as the liquid absorbing layer 156 of theabove-described hemostatic device 100.

As illustrated in FIG. 15, the pressing portion 160 is disposed on theinner surface of the securing portion 520. The pressing portion 160 canbe substantially the same as the pressing portion of the above-describedhemostatic device 100.

By way of example, the inner surface of the securing portion 520 canhave the indwelling portion 137 (refer to FIG. 4) configured to includea concave groove. In addition, for example, the inner surface of thesecuring portion 520 may have an adhesive layer (sealing member) aroundthe pressing portion 160 in order to more reliably prevent the securingportion 520 from being misaligned with the hand H of the patient.

In addition, for example, the securing portion 520 and the band portion540 can be formed of a material the same as that of the band portion 130according to the above-described embodiment. In the securing portion520, it is preferable that at least a portion which overlaps thepressing portion 160 is formed to be transparent, translucent, orcolored transparent.

For example, the securing portion 520 may be configured to be disposedbetween fingers other than the thumb F1 and the forefinger F2. Inaddition, for example, a plurality of the securing portions 520 may bedisposed in one hemostatic device 500. In this case, the securingportion 520 may be formed so as to have a plurality of portions dividedfrom the securing portion 520 and disposed between different fingers.Alternatively, the securing portion 520 may be formed so as to have aplurality of portions divided from the band portion 540 and disposedbetween different fingers. In addition, for example, the securingportion 520 may be formed integrally with the band portion 540 so thatthe securing portion 520 cannot be attached to and detached from theband portion 540. By way of example, in a case where the securingportion 520 has the plurality of portions disposed between therespective fingers, some may be attachable to and detachable from theband portion 540, and some may not be attachable to and detachable fromthe band portion 540.

Next, a procedure for using the hemostatic device 500 according toModification Example 3 will be described.

While the operator causes the sheath tube 210 of the introducer 200 toindwell the radial artery side Pdr of the palmar artery Pa (refer toFIG. 8), the operator secures the band portion 540 by wrapping the bandportion 540 around the arm A of the patient.

Next, in a state where the band portion 540 is wrapped around the arm Aof the patient, the operator secures the band portion 540 to theinter-finger portion Fb between the thumb F1 and the forefinger F2 ofthe hand H of the patient through the securing portion 520. In thiscase, the operator disposes the pressing portion 160 disposed in thesecuring portion 520 so as to overlap the site where bleeding is to bestopped t1 on the hand.

Next, the operator connects the syringe to the connector 173 of theinjection portion 170, and injects the air into the pressing portion160. The pressing portion 160 is inflated by injecting the air into thepressing portion 160 to apply the compressing force to the puncture sitet2 formed on the radial artery side Pdr of the palmar artery Pa (referto FIG. 4).

While maintaining the compressing force of the pressing portion 160which is applied to the puncture site t2, the operator removes thesheath tube 210 of the introducer 200 from the puncture site t2.

The patient can move his or her elbows or fingers while the hemostaticdevice 500 performs the hemostasis. Therefore, the patient can morefreely move his or her body, compared to a case of the hemostasis in astate where the compressing force is applied to the puncture site formedon the arm or the wrist. Accordingly, QOL is improved.

The operator removes the hemostatic device 500 from the arm A of thepatient after a predetermined time elapses and the hemostasis iscompletely performed on the puncture site t2. In this case, for example,after the operator releases the securing portion 520 secured to the bandportion 540, the operator releases the band portion 540 interlocked withthe holding portion 550. In this manner, the operator can easily detachthe hemostatic device 100.

As described above, the hemostatic device 500 according to thismodification example has the covering portion 510 disposed so as tocover the site where bleeding is to be stopped t1 on the hand H of thepatient, and the pressing portion 160 which compresses the site wherebleeding is to be stopped t1 while the covering portion 510 covers thesite where bleeding is to be stopped t1. In addition, the coveringportion 510 includes the securing portion 520 which covers the pressingportion 160, and the restriction portion 530 which surrounds the arm Aof the patient while restricting the movement of the securing portion520. Then, the securing portion 520 is disposed between the adjacentfingers of the hand H of the patient.

While the above-described hemostatic device 500 performs the hemostasisby causing the securing portion 520 disposed between the adjacentfingers F1 and F2 of the hand H of the patient to secure the pressingportion 160 to the hand H of the patient, the above-described hemostaticdevice 500 causes the restriction portion 530 surrounding the arm A ofthe patient to restrict the movement of the securing portion 520 in theaxial direction. In this manner, the hemostatic device 100 can prevent amovable range of the fingers from being narrowed when the hemostaticdevice 100 is worn on the hand H, or to prevent misalignment in a statewhere the hemostatic device 100 is worn on the hand H.

In addition, in the hemostatic device 500, the restriction portion 530is disposed on the arm A having a relatively smaller movement amount(movable range) generated by the movement of the patient compared to thehand H. Accordingly, the securing portion 520 can be preferablyprevented from moving in the axial direction.

In addition, the restriction portion 530 of the hemostatic device 500includes the band portion 540 wrapped around the arm A of the patient,and the holding portion 550 which secures the band portion 540 in astate where the band portion 540 is wrapped around the arm A of thepatient. Then, in a state where the band portion 540 is wrapped aroundthe arm A of the patient, while the securing portion 520 compresses thesite where the bleeding is to be stopped t1 on the hand, the securingportion 520 is secured to the band portion 540 after passing through thethumb F1 and the forefinger F2 of the hand H of the patient.

According to the hemostatic device 500 configured as described above,the holding portion 550 stably maintains a state where the band portion540 is wrapped around the periphery of the arm A. In addition, thesecuring portion 520 is secured to the band portion 540 after passingthrough the inter-finger portion Fb between the thumb F1 of the hand andthe forefinger F2 of the hand. In this manner, the movement of the bandportion 540 in the axial direction is restricted. Furthermore, theinter-finger portion Fb between the thumb F1 and the forefinger F2 has arelatively wider area than the inter-finger portion between otherfingers. Accordingly, the restriction portion 150 can be firmly held inthe inter-finger portion Fb, and it is possible to more preferablyprevent misalignment of the hemostatic device 500.

The hemostatic device 500 according to Modification Example 3 may beconfigured so that, for example, the restriction portion 530 surroundsthe wrist W of the patient, or may be configured to partially cover aportion of the wrist W of the patient and a portion of the arm A.

Second Embodiment

Next, a hemostatic device 600 according to a second embodiment will bedescribed. In the second embodiment, configurations and materials whichare not specifically described or medical procedures (procedures of thehemostatic method) which are not specifically described are to beregarded as those according to the above-described first embodiment, andthus, the description of such features will not be repeated. In thedescription below, features that are the same or similar to thosedescribed above are identified by common reference numerals and adetailed description of such features is also not repeated.

FIG. 18 is a plan view illustrating a state where the hemostatic device600 according to the second embodiment is worn on the hand H of thepatient, and FIG. 19 is an enlarged cross-sectional view illustrating aportion taken along line 19A-19A illustrated in FIG. 18.

In the hemostatic device 600 according to the second embodiment, theconfiguration of a covering portion 610 differs from that of thehemostatic device 100 according to the first embodiment.

As illustrated in FIGS. 18 and 19, the hemostatic device 600 has thecovering portion 610 disposed so as to cover the site where bleeding isto be stopped t1 on the hand H of the patient, and the pressing portion160 which compresses the site where bleeding is to be stopped t1 in astate where the covering portion 610 covers the site where bleeding isto be stopped t1.

As illustrated in FIG. 19, the covering portion 610 is formed from asheet-like or sheet-shaped member which covers the site where bleedingis to be stopped t1. The pressing portion 160 is disposed on the innersurface of the covering portion 610. The pressing portion 160 is welded(or adhered) to the inner surface of the covering portion 610. Thepressing portion 160 can be substantially the same as the pressingportion 160 of the hemostatic device 100 according to the firstembodiment.

An adhesive layer 620 is disposed on the inner surface of the coveringportion 610 so as to surround the periphery of the pressing portion 160.For example, it is preferable that the adhesive layer 620 is providedwith a relatively strong securing force (adhesive force) so that thecovering portion 610 can be stably maintained in a state where thecovering portion is affixed to the hand H of the patient.

As illustrated in FIG. 18 and FIG. 19, the marker portion 136 isdisposed on the inner surface of the covering portion 610. The markerportion 136 can be substantially the same as that of the hemostaticdevice 100 according to the first embodiment.

By way of example, the liquid absorbing layer capable of absorbing thebody fluid such as the blood can be disposed around the pressing portion160 on the inner surface of the covering portion 610.

In addition, the hemostatic device 600 may be provided with a protectivemember (protective sheet) that covers the adhesive layer 620 in a statewhere the hemostatic device 600 is not used. In a case where thehemostatic device 600 is configured in this way, when the hemostaticdevice 600 is used, the operator detaches the protective member from theadhesive layer 620. In this manner, the operator can secure the coveringportion 610 to the hand H of the patient by way of the uncoveredadhesive layer 620.

Next, a procedure for using the hemostatic device 600 according to thesecond embodiment will be described.

While the operator causes the sheath tube 210 of the introducer 200 toindwell the radial artery side Pdr of the palmar artery Pa (refer toFIG. 8), the operator disposes or positions the covering portion 610 tocover the site where bleeding is to be stopped t1 formed on the dorsalside Hb of the hand of the patient. In this case, the operator cansecure the hemostatic device 600 to the hand H of the patient byaffixing the adhesive layer 620 of the covering portion 610 to thedorsal side Hb of the hand H of the patient.

Next, the operator connects the syringe to the connector 173 of theinjection portion 170, and injects air into the pressing portion 160.The pressing portion 160 is inflated by injecting the air into thepressing portion 160 so as to apply the compressing force to thepuncture site t2 formed on the radial artery side Pdr of the palmarartery Pa (refer to FIG. 19).

While maintaining the compressing force of the pressing portion 160which is applied to the puncture site t2, the operator removes thesheath tube 210 of the introducer 200 from the puncture site t2.

The patient can move the arm A, the wrist W, and the fingertip, whilethe hemostasis is performed using the hemostatic device 600. Therefore,the patient can more freely move his or her body, compared to a case ofthe hemostasis in a state where the compressing force is applied to thepuncture site formed on the arm or the wrist. Accordingly, QOL isimproved.

In addition, the hemostatic device 600 has a relatively simple structurein which the covering portion 610 is secured by the adhesive layer 620in a state where the covering portion 610 covers the site where bleedingis to be stopped t1. The hemostatic device 600 does not have therestriction portion or the securing portion disposed between theadjacent fingers. Accordingly, work for wearing the hemostatic device600 on the hand H of the patient is facilitated.

The operator removes the hemostatic device 600 from the dorsal side Hbof the hand of the patient after a predetermined time elapses and thehemostasis is completely performed on the puncture site t2. In thiscase, the operator can detach the hemostatic device 600 by carrying outsimple work for separating the covering portion 610 from the dorsal sideHb of the hand of the patient.

As described above, according to the hemostatic method according to thesecond embodiment, in a state where the covering portion 610 covers thesite of bleeding is to be stopped t1 of the hand H of the patient, theoperator can cause the pressing portion 160 to apply the compressingforce to the site where bleeding is to be stopped t1. Therefore, duringthe hemostasis, the patient can more freely move the arm A, the wrist W,and the fingers F1 to F5. Accordingly, QOL is improved.

Next, a modification example according to the above-described secondembodiment will be described. Note that, in the modification example,configurations and materials which are not specifically described ormedical procedures (procedures of the hemostatic method) which are notspecifically described can be regarded as those according to theabove-described second embodiment, and thus, description thereof will beomitted.

Modification Example

In a hemostatic device 700 according to a modification example, aconfiguration of the pressing portion is different from that of thehemostatic device 600 according to the above-described secondembodiment.

As illustrated in FIG. 20, the hemostatic device 700 has a coveringportion 710 disposed so as to cover the site where bleeding is to bestopped t1 on the hand H of the patient, and a first pressing portion160A which compresses the site where bleeding is to be stopped t1 in astate where the covering portion 710 covers the site where bleeding isto be stopped t1. Furthermore, the hemostatic device 700 has a firstpressing portion 160A and a second pressing portion 160B adjacentthereto so as to extend along the running or extending direction of theradial artery side Pdr of the palmar artery Pa, and a third pressingportion 160C similarly adjacent to the first pressing portion 160A.

The second pressing portion 160B is disposed on the fingertip side fromthe first pressing portion 160A. The third pressing portion 160C isdisposed on the arm A side from the first pressing portion 160A.

The respective pressing portions 160A, 160B, and 160C are configured tobe independently inflatable and deflatable by the air injected from therespectively connected injection portions 170.

Similar to the hemostatic device 500 according to the above-describedsecond embodiment, the respective pressing portions 160A, 160B and 160Care disposed on the inner surface of the covering portion 710. Thespecific configuration of the respective pressing portions 160A, 160B,and 160C is substantially the same as that of the pressing portion 160of the hemostatic device 600 according to the second embodiment.

The inner surface of the covering portion 710 is provided with anadhesive layer for securing the covering portion 710 to the hand H ofthe patient.

Next, a procedure for using the hemostatic device 700 according to thismodification example will be described.

While the sheath tube 210 of the introducer 200 is indwelled in theradial artery side Pdr of the patient's palmar artery Pa (refer to FIG.8), the operator disposes the covering portion 610 so as to cover thesite where bleeding is to be stopped t1 formed on the dorsal side Hb ofthe hand of the patient. In this case, the operator disposes the firstpressing portion 160A so as to overlap the site where bleeding is to bestopped t1, and disposes the second pressing portion 1606 and the thirdpressing portion 160C so as to overlap the radial artery side Pdr of thepalmar artery Pa.

The operator secures the hemostatic device 700 to the hand H of thepatient by affixing the adhesive layer 620 of the covering portion 610to the surface of the dorsal side Hb of the hand of the patient.

Next, the operator connects the syringe to the connector 173 of theinjection portion 170 connected to the first pressing portion 160A, andinjects the air into the first pressing portion 160A. The pressingportion 160 is inflated by injecting the air into the pressing portion160 so as to apply the compressing force to the puncture site t2 formedon the radial artery side Pdr of the palmar artery Pa.

Next, the operator injects air into the respective pressing portions160B and 160C via the injection portion 170 connected to the secondpressing portion 160B and the injection portion 170 connected to thethird pressing portion 160C. In this case, the compressing force(inflated amount) applied by the respective pressing portions 160B and160C is suppressed to a certain degree of magnitude relative to thecompressing force of the first pressing portion 160A. That is, thesecond pressing portion 160B and the third pressing portion 160C areinflated and apply a compression force reduced relative to thecompressing force of the first pressing portion 160A to a portiondisposed at the second pressing portion 160B and the third pressingportion 160C. The hemostatic device 700 causes the second pressingportion 160B and the third pressing portion 160C to apply thecompressing force to the radial artery side Pdr of the palmar artery Pa.In this manner, the hemostatic device 700 reduces the pressure (flowpressure) of the blood flowing in the vicinity where the first pressingportion 160A is disposed. The order of inflating the second pressingportion 160B and the order of the third pressing portion 160C are notthe same as each other. For example, both of these may be inflated atthe same time.

Next, the operator discharges the air from the first pressing portion160A via the injection portion 170 connected to the first pressingportion 160A. Through this operation, the operator decreases thecompressing force of the first pressing portion 160A to such an extentthat blood does not flow out of the site where bleeding is to be stoppedt1.

Next, the operator removes the sheath tube 210 of the introducer 200from the puncture site t2.

The hemostatic device 700 causes the second pressing portion 160B andthe third pressing portion 160C to apply the compressing force to theradial artery side Pdr of the palmar artery Pa, thereby reducing thepressure (flow pressure) of the blood flowing in the vicinity where thefirst pressing portion 160A is disposed. Accordingly, even in a statewhere the compressing force applied to the puncture site t2 by the firstpressing portion 160A is suppressed, it is possible to prevent the bloodfrom flowing out of the site where bleeding is to be stopped t1. Inaddition, the hemostatic device 700 can perform the hemostasis whilemaintaining a state where the puncture site t2 is open. Therefore,during the hemostasis, the radial artery side Pdr of the palmar arteryPa can be prevented from being occluded.

The number of the pressing portions disposed in the hemostatic device700 is not particularly limited, as long as three or more (the firstpressing portion 160A and the two pressing portions 160B and 160Cdisposed so as to interpose the first pressing portion 160Atherebetween) are provided. In addition, in order that the hemostaticmethod described in this modification example can be realized, it ispreferable that the respective pressing portions disposed in thehemostatic device 700 are configured to be respectively andindependently inflatable.

The inventive hemostatic device and the hemostatic method disclosed herehave been described with reference to a plurality of the embodiments andmodification examples. However, the present invention is not limited tothe respective configurations described above, and can be appropriatelymodified, while falling within the scope of the appended claims.

For example, an applicable target of the hemostatic device is notlimited to the blood vessel as long as the blood vessel serving as theapplicable target is the palmar artery running in the hand.Specifically, in the respective embodiments, (i) an example has beendescribed in which hemostasis is performed on the puncture site formedon the radial artery side Pdr of the deep palmar artery Pd of the palmarartery Pa. However, the hemostatic device can be used for hemostasissuch as, for example, (ii) hemostasis of the puncture site formed on theulnar artery side Pdu of the deep palmar artery Pd of the palmar arteryPa, (iii) hemostasis of the puncture site formed on the radial arteryside Pfr of the superficial palmar artery Pf of the palmar artery Pa,and (iv) hemostasis of the puncture site formed on the ulnar artery sidePfu of the superficial palmar artery Pf of the palmar artery Pa (referto FIG. 6).

In a case where the hemostatic device is used for the hemostasis of(iii) and (iv) described above, it is preferable to adopt aconfiguration so that the pressing portion is disposed on the palm Hpside. The superficial palmar artery Pf of the palmar artery Pa runs at aposition close to the palm Hp side rather than the side of the dorsalside Hb of the hand. Accordingly, the operator applies the compressingforce from the palm Hp side. In this manner, hemostasis can bepreferably performed. In this case, the puncture site can be formedthrough the puncturing from the palm side of the patient.

In addition, the hemostatic method is not particularly limited to aspecific hemostasis position (position to which the compressing force isapplied), as long as an object of the hemostasis is the puncture siteformed on the radial artery side of the palmar artery in which the bloodvessel serving as the applicable target runs in the hand. For example,the hemostatic method is not limited to the hemostasis of the puncturesite formed on the radial artery side Pdr of the deep palmar artery Pdof the palmar artery Pa, and is also applicable to the hemostasis of thepuncture site formed on the radial artery side Pfr of the superficialpalmar artery Pf of the palmar artery Pa (refer to FIG. 6).

In addition, the hand on which the puncture site is formed may be eitherthe right hand or the left hand of the patient.

In addition, in the respective embodiments, an example has beendescribed in which the sheath tube of the introducer is used as themedical elongated body inserted into the palmar artery via the puncturesite. However, a specific type of the medical elongated body is notparticularly limited. For example, a guide wire or a guiding sheath maybe used.

In addition, the hemostatic device described in the respectiveembodiments and modification examples is merely an example. Each portionconfiguring the hemostatic device can be replaced with any desiredconfiguration capable of fulfilling the same function. In addition, thehemostatic device may be appropriately provided with any additionalconfiguration element (member) which is not specifically describedherein.

The detailed description above describes embodiments and modificationexamples of a hemostatic device and hemostatic method which collectivelyrepresent examples of the inventive hemostatic device and hemostaticmethod disclosed here. The invention is not limited, however, to theprecise embodiments, modifications and variations described. Variouschanges, modifications and equivalents can be effected by one skilled inthe art without departing from the spirit and scope of the invention asdefined in the accompanying claims. It is expressly intended that allsuch changes, modifications and equivalents which fall within the scopeof the claims are embraced by the claims.

What is claimed is:
 1. A hemostatic device comprising: a coveringportion disposed so as to cover a site where bleeding is to be stoppedon a hand of a patient; a pressing portion that compresses the sitewhere bleeding is to be stopped when the covering portion covers thesite where bleeding is to be stopped; a marker portion for aligning thepressing portion with the site where bleeding is to be stopped so thatthe pressing portion overlies the site where bleeding is to be stopped;the covering portion including: a securing portion configured tosurround at least a portion of the patient's hand while covering thepressing portion, and a restriction portion that restricts movement ofthe securing portion in an axial direction; the restriction portionbeing positionable between adjacent fingers of the patient's hand; thesecuring portion including: a band portion wrappable around a peripheryof the patient's hand at the site where bleeding is to stopped; and aholding portion that secures the band portion in a state in which theband portion is wrapped around the periphery of the patient's hand atthe site where bleeding is to stopped; wherein the restriction portionincludes: a first end portion secured to the band portion; and a secondfree end portion configured to be freely detachably interlocked with theband portion; and the hemostatic device being configured so that in astate in which the second end portion of the restriction portion isinterlocked with the band portion while the band portion is wrappedaround the periphery of the patient's hand at the site where bleeding isto stopped, the pressing portion and the marker portion are disposed ona thumb side of the band portion between the first end portion of therestriction portion and the second free end portion of the restrictionportion.
 2. The hemostatic device according to claim 1, wherein therestriction portion is configured so that when the second end portion ofthe restriction portion is detachably interlocked with the band portion,an intermediate portion of the restriction portion located between thefirst and second end portions of the restriction portion passes betweena thumb of the patient's hand and a forefinger of the patient's hand, ina state in which the band portion is wrapped around the periphery of thepatient's hand.
 3. The hemostatic device according to claim 2, whereinthe covering portion is configured and the pressing portion ispositioned relative to the covering portion such that in a state inwhich the second end portion of the restriction portion is detachablyinterlocked with the band portion, the pressing portion is disposed on aroot side of the patient's thumb from the second end portion of therestriction portion.
 4. The hemostatic device according to claim 2,wherein the marker portion and the pressing portion are positioned inoverlying relation to one another.
 5. The hemostatic device according toclaim 1, wherein the restriction portion includes a liquid absorbinglayer that possesses a liquid absorbing property to absorb liquid whenthe restriction portion is positioned between the adjacent fingers, theliquid absorbing layer being positioned on a side of the restrictionportion that faces the patient's hand when the restriction portion ispositioned between the adjacent fingers.
 6. The hemostatic deviceaccording to claim 1, wherein the covering portion includes a throughopening that passes through the covering portion to enable a medicalelongated body to pass through the through opening and indwell at thesite where bleeding is to be stopped.
 7. The hemostatic device accordingto claim 1, wherein the securing portion is a surrounding portion whichis configured to surround a whole dorsal side of the patient's handwhile being in contact with a surface of the dorsal side of the hand,and the restriction portion is formed integrally in one piece with thesurrounding portion and passes between the adjacent fingers of the handin a state in which the surrounding portion is wrapped around the dorsalside of the patient's hand.
 8. The hemostatic device according to claim7, wherein the surrounding portion includes a through opening thatpasses through the surrounding portion to enable a medical elongatedbody to pass through the through opening and indwell at the site wherebleeding is to be stopped, and the through opening being disposedbetween a thumb of the patient's hand and a forefinger of the patient'shand in a state in which the surrounding portion is wrapped around thedorsal side of the patient's hand.
 9. The hemostatic device according toclaim 8, wherein the through opening is disposed on a side of the thumbfrom the pressing portion in the state in which the surrounding portionis wrapped around the dorsal side of the patient's hand.
 10. Ahemostatic device comprising: a covering portion configured to cover asite where bleeding is to be stopped on a hand of a patient; anexpandable pressing portion that is expandable to apply a compressiveforce to the site where bleeding is to be stopped when the coveringportion covers the site where bleeding is to be stopped; the coveringportion including: a first band part that extends away from the pressingportion in a first direction, the first band part including one endfixed relative to the pressing portion and an opposite free end, thefirst band part including a first fastener; a second band part thatextends away from the pressing portion in a second direction, the seconddirection being different from the first direction, the second band partincluding one end fixed relative to the pressing portion and an oppositefree end, the second band part including a second fastener; the firstband part and the second band part possessing respective lengths thatallow the first band part and the second band part to be wrapped arounda periphery of the patient's hand while the expandable pressing portionoverlies the site where bleeding is to be stopped and that allow thefirst and second fasteners to detachably engage one another to hold theexpandable pressing portion on the patient's hand at the site wherebleeding is to be stopped; a third band part that includes one end fixedrelative to the pressing portion and an opposite free end, the thirdband part extending in a third direction different from the first andsecond directions, the third band part including a third fastener, thethird band part also including an intermediate portion located betweenthe one end and the opposite free end of the third band; the third bandpart possessing a length allowing the intermediate portion of the thirdband part to be positioned between two fingers of the patient's hand andallowing the third fastener to detachably engage the second fastener torestrict movement of the expandable pressing portion in an axialdirection; and a visually identifiable marker for aligning theexpandable pressing portion with the site where bleeding is to bestopped, the visually identifiable marker and the expandable pressingportion overlying one another so that positioning the visuallyidentifiable marker to overlie the site where bleeding is to be stoppedresults in the expandable pressing portion being positioned to overliethe site where bleeding is to be stopped.
 11. The hemostatic deviceaccording to claim 10, wherein the hemostatic device is configured sothat when the third fastener of the third band portion is interlockedwith the second fastener of the second band part while the first andsecond band parts are wrapped around the periphery of the patient'shand, the third band part passes between the patient's thumb andforefinger.
 12. The hemostatic device according to claim 10, wherein atransparent part of the covering portion overlies the pressing portion.13. The hemostatic device according to claim 10, wherein the pressingportion includes an interior connected to a part that extends away fromthe covering portion.
 14. The hemostatic device according to claim 13,wherein the part that extends away from the covering portion is a tube.15. The hemostatic device according to claim 10, wherein the pressingportion is inflatable and includes an interior into which fluid isintroduced to expand the pressing portion.
 16. The hemostatic deviceaccording to claim 15, further comprising a through hole passing throughthe covering portion and communication with the interior of the pressingportion.
 17. A hemostatic method of performing hemostasis on a puncturesite formed on a radial artery side of a palmar artery of a hand of apatient, the method comprising: positioning a hemostatic device relativeto the puncture site where bleeding is to be stopped so that a coveringportion of the hemostatic device covers the puncture site on the hand ofthe patient where bleeding is to be stopped, the hemostatic device alsocomprising a pressing portion; the positioning of the hemostatic devicerelative to the puncture site where bleeding is to be stopped comprisingpositioning the pressing portion to overlie the puncture site on thehand of the patient where bleeding is to be stopped; the positioning ofthe pressing portion to overlie the puncture site on the hand of thepatient where bleeding is to be stopped comprising positioning thepressing portion to overlie the puncture site on the hand of the patientwhere bleeding is to be stopped while a medical elongated body indwellsthe puncture site; securing the covering portion to the patient's handby wrapping a securing portion of the covering portion around at least aportion of the patient's hand while the securing portion covers thepressing portion; applying a compressing force to the puncture site ofthe patient's hand by way of the pressing portion; and removing themedical elongated body from the puncture site while maintaining thecompressing force applied to the puncture site of the patient's hand bythe pressing portion.
 18. The hemostatic method according to claim 17,wherein the securing of the covering portion to the patient's handincludes wrapping a band around at least a portion of the patient's handand positioning a part of a restriction portion which restricts movementof the securing portion in an axial direction between adjacent fingersof the patient's hand in a state in which the covering portion issecured to the patient's hand.
 19. The hemostatic method according toclaim 17, wherein the securing of the covering portion to the patient'shand includes wrapping a band portion around the periphery of thepatient's hand, positioning a restriction portion between a thumb of thepatient's hand and a forefinger of the patient's hand and securing aportion of the restriction portion to the band portion.
 20. Thehemostatic method according to claim 19, wherein in a state where thepatient's hand is open, the puncture site is formed between a centerline of the patient's thumb and a center line of the patient'sforefinger on a side of the dorsal side of the hand, and wherein thesecuring of the covering portion to the patient's hand includespositioning the restriction portion so that the puncture site isdisposed on a side of the band portion from the restriction portion. 21.The hemostatic method according to claim 19, wherein in a state in whichthe restriction portion is disposed between the adjacent fingers of thepatient's hand, the pressing portion is disposed on a root side of athumb of the patient from an end portion of the restriction portionwhich is secured to the band portion.
 22. The hemostatic methodaccording to claim 17, wherein the securing of the covering portion tothe patient's hand also comprises positioning a part of a restrictionportion of the covering portion between adjacent fingers of thepatient's hand to inhibit axial movement of the covering portion on thepatient's hand.
 23. The hemostatic method according to claim 22, whereinthe positioning of the part of the restriction portion of the coveringportion between adjacent fingers of the patient's hand to inhibit axialmovement of the covering portion on the patient's hand occurs before theremoving of the medical elongated body from the puncture site.